The present study aimed at investigating the effects of collaborative work between Korean EFL university students and international foreign students on Intercultural Communicative Competence. Twenty four students (14 Korean students and 10 international students) participated in this research. Chen and Starosta’s (2000) intercultural sensitivity scale was implemented with Paradigm Software to measure the participants’ resolution latency time while they were responding to the survey. The results demonstrated that two groups showed significant differences in the areas of respect for cultural difference and interaction confidence. Also, apart from the response value, the analysis of resolution latency time showed other aspects of participants’ cognitive level of intercultural sensitivity. Thus, this study indicates that a multi-round analysis can give a more in-depth insight beyond the mean value of the survey’s response.